NNDB

This is a really cool resource. It documents basic profile information on over 12000 famous people and the links between them. It's an easy way of seeing who knows who in the business, entertainment and political world. For example, it shows that Bill Gates' wife is a member of the Bilderberg group. The Bilderberg group is group of high ranking capitalists which a magnet for modern day conspiracy theorists.

NNDB